Question

WTW
। ଶାସ
QIC
along with ammonium chloride.
3.State any two uses of bleaching powder. Write the reaction involved in manufacture of bleaching powder
4. Differentiate between : 1. Mineral and Ore
Li Calcination and Roasting
5. Explain electrolytic refining of Cu with the help of well labelled diagram.
6. What is chlor-alkali process? Write the chemical equation involved. Name the gases given off at anode an
respectively. Write any one use each of any two products produced in this process.
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Answer 1

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Explanation:

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Answer 2

Answer:

TWO USES OF BLEACHING POWDER..

1. IT IS USED IN INDUSTRIES.
2. USED FOR DISINFECTING WATER.

IT IS PREPARED BY ADDING CHLORINE TO CALCIUM HYDROXIDE.

MINERAL-A HOMOGENOUS SUBSTANCE WHICH EVEN CONTAIN A SMALL AMOUNT OF METAL. ALL MINERALS ARE NOT ORE.

ORE-A MINERAL FROM WHICH METAL CAN BE EXTRACTED PROFITABLY AND ECONOMICALLY. ALL ORES ARE MINERALS.

WHEN ELECTRICITY IS PASSRD THROUGH AQUEOUS SOLUTION OF SODIUM CHLORIDE(BRINE) THEN SODIUM HYDROXIDE, CHLORINE AND HYDROGEN GAS IS RELEASED. IT IS KNOWN AS CHLORO ALKALI PROCESS BECAUSE PRODUCTS FORMED ARE BASE(SODIUM HYDROXIDE) AND CHLORINE.

• FOR ELECTROLYTIC REFINING OF COPPER. TAKE PURE METAL ON CATHODE AND IMPURE METAL ON ANODE..
• TAKE THE SOLUTION OF ACIDIFIED COPPER SULPHATE AS ELECTROLYTE.
• PASS ELECTRICITY THROUGH THE SOLUTION.
• ANODE MUD GETS COLLECTED UNDER ANODE.